LATEST KEY QUESTIONS AND ANSWERS.
Solve the equation.
(y - 11) - (y + 10) = 4y
y=-21/4
((7x+7)/5)+((6x-2)/2)=-1
x=-7/22
Find the midpoint of the line segment with the given endpoints.
(2, -9) and (-1, 6)
(1/2, -3/2)
Determine the equation of the line described. Put answer in the slope-intercept
form, if possible.
Through (5, -3), perpendicular to -7x - 3y = -44
y=(3/7x)-(36/7)
Write the number in scientific notation.
0.0000088316
8.8316 x 10^-6
Write the statement using absolute value notation.
The distance between y and -8 is greater than 3.
|y+8|>3
Find the slope of the line through the pair of points.
(6, -2) and (4, -2)
0
, Find an equation for the circle.
Center (0, -6), radius 11
x^2+(y+6)^2=121
Write the number in decimal form.
3.971 × 10-5
0.00003971
Solve the equation.
(x+7)/8 = (x+8)/9
x=1
Write the expression in standard form.
i/(2+i)
1/5 +2/5i
Solve the equation graphically by finding x-intercepts.
x3 - 6x2 + 12x - 10 = 0
x=3.26
Solve the inequality algebraically. Write the solution in interval notation.
|x+3| <= 6
[-9,3]
Write the product in standard form.
(6 + 4i)( 7 - 3i)
54+10i
A rock falls from a tower that is 132.3 m high. As it is falling, its height is given by
the formula h = 132.3 - 4.9t2.
How many seconds will it take for the rock to hit the ground (h=0)?